Lighting device



FIG. 1 is a front perspective view of a lighting device showing the new design;

FIG. 2 is a front elevation view thereof shown at an enlarged scale;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a rear elevation view thereof shown at an enlarged scale;

FIG. 5 is a right elevation view thereof, the left elevation view being a mirror image thereof shown at an enlarged scale; and,

FIG. 6 is a top plan view thereof shown at an enlarged scale.

The broken lines shown in the drawings are included for the purpose of illustrating portions of the lighting device and form no part of the claimed design. 

CLAIM The ornamental design for a lighting device, as shown and described. 